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The company

Alkermes plc -

ALKS · Nasdaq

Health CarePharmaceuticalsJust started moving

ALKS stood above a rising 150-day average in 33 of the last 52 weekly readings, including each of the last 1 week. It is 0.9% above that average now. Pharmaceuticals: 32% of its 74 stocks in an uptrend (−7 points in four weeks); Health Care: 26% (−10 points in four weeks).

SEC filings

Statistics

Rotation: Just started moving
Weeks in an uptrend: 1 in a row
Industry in uptrend: 32% -7 in 4 wk
Insider buys, 12 months: $0
Insider sales, 12 months: $20.0M
Officials’ trades on record: 8
Institutions holding: 391 (+32)

In the rotation

Each square a week: lit when it closed above a rising 150-day average. 33 of 52 weeks.

20 Apr – 19 Oct

Pharmaceuticals: A minority of its stocks are in an uptrend and the share has been slipping. Health Care: A minority of its stocks are in an uptrend and the share has fallen sharply over four weeks.

Money in and out

1 Nov 2024 – 1 Oct 2026

Open-market buys above the line and sales below, in dollars.

Congress and officials

8 disclosed lines: House 2, Senate 0, executive 6; 2 people.

Who	Did	Amount	Traded
Gilbert Ray Cisneros, Jr. House: U.S. House ClerkCA31	bought	$1k–$15k	29 Sep 2026filed 12 Oct 2026
Gilbert Ray Cisneros, Jr. House: U.S. House ClerkCA31	bought	$15k–$50k	30 Jul 2026filed 4 Sep 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	sold	$50k–$100k	29 Jul 2026filed 22 Sep 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	bought	$1k–$15k	15 Jun 2026filed 22 Aug 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	sold	$1k–$15k	15 May 2026filed 1 Jul 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	bought	$50k–$100k	30 Mar 2026filed 14 May 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	sold	$15k–$50k	26 Feb 2026filed 14 May 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	bought	$15k–$50k	26 Jan 2026filed 14 May 2026

Insiders

Buy orders, 12 months0

Sale orders, 12 months29

Buyers · sellers0 · 7

Who	Did	Shares	Traded
David Joseph GaffinEVP, CLO, Alkermes, Inc.	sold	2,034at $41.03	2 Oct 2026filed 2 Oct 2026
David Joseph GaffinEVP, CLO, Alkermes, Inc.	sold	2,034at $48.01	3 Sep 2026filed 3 Sep 2026
Craig C. HopkinsonEVP R&D, Chief Medical Officer	sold	9,000at $46.99	1 Sep 2026filed 1 Sep 2026
Christian Todd NicholsSVP, Chief Commercial Officer	sold	6,912at $49.19	17 Aug 2026filed 17 Aug 2026
Christian Todd NicholsSVP, Chief Commercial Officer	sold	664at $49.65	17 Aug 2026filed 17 Aug 2026
David Joseph GaffinEVP, CLO, Alkermes, Inc.	sold	2,034at $48.58	3 Aug 2026filed 3 Aug 2026
Craig C. HopkinsonEVP R&D, Chief Medical Officer	sold	9,000at $48.58	3 Aug 2026filed 3 Aug 2026
Nancy Lynn Md SnydermanDirector	sold	44,472at $50.35	3 Aug 2026filed 3 Aug 2026
David Joseph GaffinEVP, CLO, Alkermes, Inc.	sold	2,034at $54.03	6 Jul 2026filed 6 Jul 2026
Craig C. HopkinsonEVP R&D, Chief Medical Officer	sold	8,300at $51.46	1 Jul 2026filed 1 Jul 2026
Craig C. HopkinsonEVP R&D, Chief Medical Officer	sold	700at $52.13	1 Jul 2026filed 1 Jul 2026
Christopher I. WrightDirector	sold	2,000at $45.10	12 Jun 2026filed 12 Jun 2026

Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.

Institutions

Holders391+32 on the quarter

New · exited88 · 55

Reported value$8.9B

Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.

Manager	Shares	Change
BlackRock, Inc.added · filed 7 Aug 2026	29,235,739$1.5B	+921,329+3.3%
BAKER BROS. ADVISORS LPunchanged · filed 14 Aug 2026	10,012,267$524.6M	00.0%
VANGUARD PORTFOLIO MANAGEMENT LLCreduced · filed 13 Aug 2026	9,490,818$497.3M	-20,294−0.2%
STATE STREET CORPreduced · filed 7 Aug 2026	9,160,575$480.0M	-304,711−3.2%
VANGUARD CAPITAL MANAGEMENT LLCadded · filed 13 Aug 2026	7,515,025$393.7M	+87,628+1.2%
RENAISSANCE TECHNOLOGIES LLCadded · filed 13 Aug 2026	6,460,928$338.5M	+300,500+4.9%
GEODE CAPITAL MANAGEMENT, LLCadded · filed 12 Aug 2026	4,477,876$234.7M	+295,609+7.1%
DIMENSIONAL FUND ADVISORS LPreduced · filed 11 Aug 2026	4,194,873$219.8M	-327,505−7.2%
Deep Track Capital, LPadded · filed 14 Aug 2026	4,000,000$209.6M	+409,677+11.4%
AMERICAN CENTURY COMPANIES INCreduced · filed 12 Aug 2026	3,954,239$207.2M	-2,117,864−34.9%